Paper/patches/server/0445-Expose-LivingEntity-hurt-direction.patch
Bjarne Koll c5a10665b8
Remove wall-time / unused skip tick protection (#11412)
Spigot still maintains some partial implementation of "tick skipping", a
practice in which the MinecraftServer.currentTick field is updated not
by an increment of one per actual tick, but instead set to
System.currentTimeMillis() / 50. This behaviour means that the tracked
tick may "skip" a tick value in case a previous tick took more than the
expected 50ms.

To compensate for this in important paths, spigot/craftbukkit
implements "wall-time". Instead of incrementing/decrementing ticks on
block entities/entities by one for each call to their tick() method,
they instead increment/decrement important values, like
an ItemEntity's age or pickupDelay, by the difference of
`currentTick - lastTick`, where `lastTick` is the value of
`currentTick` during the last tick() call.

These "fixes" however do not play nicely with minecraft's simulation
distance as entities/block entities implementing the above behaviour
would "catch up" their values when moving from a non-ticking chunk to a
ticking one as their `lastTick` value remains stuck on the last tick in
a ticking chunk and hence lead to a large "catch up" once ticked again.

Paper completely removes the "tick skipping" behaviour (See patch
"Further-improve-server-tick-loop"), making the above precautions
completely unnecessary, which also rids paper of the previous described
incompatibility with non-ticking chunks.
2024-09-19 16:36:07 +02:00

59 lines
2.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Mark Vainomaa <mikroskeem@mikroskeem.eu>
Date: Sun, 13 Dec 2020 05:32:05 +0200
Subject: [PATCH] Expose LivingEntity hurt direction
diff --git a/src/main/java/net/minecraft/world/entity/player/Player.java b/src/main/java/net/minecraft/world/entity/player/Player.java
index cb89b020d93ac838843ec2cbad562326a1e4257b..513e6505706e64f9410fa190014976dc469793af 100644
--- a/src/main/java/net/minecraft/world/entity/player/Player.java
+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
@@ -188,7 +188,7 @@ public abstract class Player extends LivingEntity {
private Optional<GlobalPos> lastDeathLocation;
@Nullable
public FishingHook fishing;
- protected float hurtDir;
+ public float hurtDir; // Paper - protected -> public
@Nullable
public Vec3 currentImpulseImpactPos;
@Nullable
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
index 6cda13df52ee4d56dd1d3c213307bfd38175584c..24aa891ffa9115c05439b06aece85df7a382b7c4 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftHumanEntity.java
@@ -125,6 +125,13 @@ public class CraftHumanEntity extends CraftLivingEntity implements HumanEntity {
}
}
+ // Paper start
+ @Override
+ public void setHurtDirection(float hurtDirection) {
+ this.getHandle().hurtDir = hurtDirection;
+ }
+ // Paper end
+
@Override
public int getSleepTicks() {
return this.getHandle().sleepCounter;
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
index 5e8225a6ae004795b4d44c4f88f262664f632589..0e0c65534a782ce8d73d38efd5e2c847f685fb89 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
@@ -999,4 +999,16 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
this.getHandle().take(((CraftItem) item).getHandle(), quantity);
}
// Paper end - pickup animation API
+
+ // Paper start - hurt direction API
+ @Override
+ public float getHurtDirection() {
+ return this.getHandle().getHurtDir();
+ }
+
+ @Override
+ public void setHurtDirection(final float hurtDirection) {
+ throw new UnsupportedOperationException("Cannot set the hurt direction on a non player");
+ }
+ // Paper end - hurt direction API
}